Experimental Research on Seismic Performance of Bottom Joints in Prefabricated Steel-Reinforced Concrete Outer Walls of Underground Metro Stations
-
摘要: 提出了适用于无柱式地下车站的装配式型钢混凝土结构方案,通过3个外侧墙底部节点1/3缩尺模型(包括实心侧壁构造和叠合侧壁构造装配式型钢混凝土试件各1个,以及1个现浇对比试件)的低周反复荷载试验对其抗震性能进行了研究。结果表明:采用实心侧壁构造和叠合侧壁构造的装配式型钢混凝土外侧墙底部节点均具有良好的整体性,承载力与现浇对比试件接近;实心侧壁构造和叠合侧壁构造试件的延性系数分别为3.1和3.0,均高于相应的现浇对比试件(分别高约7.0%和3.4%);2个装配式型钢混凝土试件的耗能能力和刚度退化规律总体上与现浇对比试件相近。
-
关键词:
- 地下车站 /
- 装配式型钢混凝土结构 /
- 外侧墙底部节点 /
- 低周反复荷载试验 /
- 抗震性能
Abstract: A prefabricated steel-reinforced concrete structure for column-free underground metro stations was proposed. The seismic performance of the bottom joints of outer walls was studied by quasi-static loading tests on three 1/3-scale specimens, including one specimen with concrete solid sidewalls, one specimen with concrete composite sidewalls, and one cast-in-place specimen. The results showed that the bottom joints of the prefabricated steel-reinforced concrete outer walls with solid sidewall and composite sidewall configurations all exhibited excellent structural integrity, with their bearing capacities close to that of the cast-in-place specimen. The ductility coefficients of the specimens with solid concrete sidewalls and composite concrete sidewalls were 3.1 and 3.0, respectively, which were 7.0% and 3.4% higher than those of the corresponding cast-in-place specimen.The energy dissipation capacity and stiffness degradation characteristics of the two prefabricated steel-reinforced concrete specimens were similar to those of the cast-in-place specimen. -
[1] 杨秀仁. 我国预制装配式地铁车站建造技术发展现状与展望[J]. 隧道建设(中英文),2021,41(11):1849-1870. [2] 邵莹,胡双平,高志宏,等. 装配式混凝土地下车站结构应用与研究进展[J]. 铁道工程学报,2023,40(4):89-93. [3] YURKEVICH P. Developments in segmental concrete linings for subway tunnels in belarus[J]. Tunneling and Underground Space Technology,1995,10(3):353-365. [4] 钱七虎,戚承志. 俄罗斯地下铁道建设精要[M]. 北京:中国铁道出版社,2002. [5] 杨秀仁,黄美群. 地铁车站预制装配新技术研究策略[J]. 都市快轨交通,2018,31(1):78-85. [6] 杨秀仁,林放,黄美群. 地铁车站预制装配式结构注浆式单榫接头抗弯刚度试验研究[J]. 土木工程学报,2020,53(3):38-43. [7] 杨秀仁,林放,黄美群. 地铁车站预制装配式结构注浆式单榫长接头抗弯承载性能试验研究[J]. 土木工程学报,2020,53(4):111-118. [8] 杨秀仁,黄美群,林放. 地铁车站预制装配式结构注浆式单榫短接头抗弯承载性能试验研究[J]. 土木工程学报,2020,53(5):57-64. [9] 李霞,杨秀仁. 水平地震作用下装配式地铁车站结构与同型现浇结构内力对比分析[J]. 隧道建设(中英文),2022,42(增刊1):147-154. [10] 杜修力,刘洪涛,路德春,等. 装配整体式地铁车站侧墙底节点抗震性能研究[J]. 土木工程学报,2017,50(4):38-47. [11] 冯帅克,郭正兴,刘毅,等. 装配式地铁车站外墙-底板节点抗震性能研究[J]. 中南大学学报(自然科学版),2023,54(1):259-268. [12] 冯帅克,郭正兴,刘毅,等. 半预制装配式地下车站侧墙底节点抗震性能试验研究[J]. 工程力学,2023,40(2):190-201. [13] 冯帅克,郭正兴,刘毅,等. 装配式地铁车站侧墙-顶板节点抗震性能试验研究[J]. 东南大学学报(自然科学版),2021,51(4):610-617. [14] 杜修力,刘洪涛,许成顺,等. 装配整体式地铁车站纵断面方向梁板柱中节点抗震性能研究[J]. 建筑结构学报,2019,40(9):95-103. [15] 杜修力,刘洪涛,许成顺,等. 装配整体式地铁车站横断面方向梁板柱中节点抗震性能研究[J]. 建筑结构学报,2019,40(8):51-60. [16] 陈晋男,杜修力,许成顺,等. 基于IDA方法的矩形装配式地铁车站结构地震易损性评价[J]. 建筑结构学报,2023,44(7):37-46. -
点击查看大图
计量
- 文章访问数: 13
- HTML全文浏览量: 3
- PDF下载量: 0
- 被引次数: 0
登录
注册
E-alert
登录
注册
E-alert
下载: